The given graph shows the variation of charge Q versus potential difference for capacitances `C_(2)` and `C_(2)`. The two capacitors have the same plate separation but the plate area of `C_(2)` is double that of `C_(1)`. Which of the lines in the graphs correspond to `C_(1)` and `C_(2)` and why ?

Explanation

Line B corresponds to `C_(1)` because slop (Q/V) of B is less than slop of A.